medicine Medicine is the science and practice of caring for a patient, managing the diagnosis, prognosis, prevention, treatment, palliation of their injury or disease, and promoting their health. Medicine encompasses a variety of health care pract ...

a Busch fracture is a type of fracture of the base of the distal phalanx of the fingers, produced by the removal of the bone insertion ( avulsion) of the extensor tendon. Without the appropriate treatment, the finger becomes a

hammer finger A mallet finger, also known as hammer finger or PLF finger or Hannan finger, is an extensor tendon injury at the farthest away finger joint. This results in the inability to extend the finger tip without pushing it. There is generally pain and ...

. It would correspond to the group B of the Albertoni classification. It is very common in motorcycle riders and soccer joggers, caused by hyperflexion when the tendon is exercising its maximum tension (the closed hand tightening the clutch lever or the brake lever). The Busch fracture is named after Friedrich Busch (1844–1916), who described this type of fracture in the 1860s. Busch's work was drawn on by

Albert Hoffa Albert Hoffa (31 March 1859 – 31 December 1907) was a German surgeon, orthopedist and physiotherapist born in Richmond, Cape of Good Hope. He studied medicine at the Universities of Marburg and Freiburg, earning his doctorate with a thesis on n ...

in 1904, resulting in it sometimes being called a "Busch-Hoffa fracture". The mechanism of this injury can be described as an avulsion of the tendon fixed to the distal phalanx. Mallet finger mechanism

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worldcat-Friedrich Busch
Bone fractures {{injury-stub

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